| (19) |
 |
|
(11) |
EP 0 875 145 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
23.06.1999 Bulletin 1999/25 |
| (43) |
Date of publication A2: |
|
04.11.1998 Bulletin 1998/45 |
| (22) |
Date of filing: 27.04.1998 |
|
| (51) |
International Patent Classification (IPC)6: A01N 37/16
// (A01N37/16, 47:48, 47:44, 47:10, 47:02, 43:90, 43:80, 43:78, 43:26, 37:34, 35:08,
35:04, 35:02, 33:12, 33:08) |
|
| (84) |
Designated Contracting States: |
|
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
Designated Extension States: |
|
AL LT LV MK RO SI |
| (30) |
Priority: |
30.04.1997 US 848326
|
| (71) |
Applicant: NALCO CHEMICAL COMPANY |
|
Naperville
Illinois 60563-1198 (US) |
|
| (72) |
Inventors: |
|
- LaZonby, Judy G.
Crystal Lake,
Illinois 60012 (US)
- McCarthy, Robert E.
Naperville,
Illinois 60540 (US)
- Casselman, Nancy L.
Wheaton,
Illinois 60187 (US)
|
| (74) |
Representative: Harrison, David Christopher et al |
|
MEWBURN ELLIS
York House
23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB) |
|
| |
|
| (54) |
Method and composition for inhibiting growth of microorganisms including peracetic
acid and a non-oxidizing biocide |
(57) The present invention provides a composition and method of administering same for
inhibiting the growth of microorganisms. The composition of the present invention
includes sufficient amounts of a peracetic acid or peracetic acid/peracid blend and
a non-oxidizing biocide. The method of the present invention includes the step of
adding sufficient amounts of the peracetic acid or peracetic acid/peracid blend and
the non-oxidizing biocide to industrial process waters.